Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of D42 |
| automorphism | Aut(G) order 262144 |
| homology | Abelianization (H1) = C22×C42 · Schur multiplier (H2) = C23×C42 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, socle, prime radical, cosocle | C24 | C24 |
| commutator | C22 | C22×C42 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C24 ▷ C1 | |
831 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 4 generators on 20 points:
(2,4)(9,10,12,11)(13,14,17,16)(15,18,20,19);(5,6,7,8)(9,11,12,10)(14,16)(18,19);(1,2,3,4)(13,15,17,20)(14,18,16,19);(13,16,17,14)(15,19,20,18)Polycyclic presentation:
2^8|a^2=g,b^2=h,c^2=ef,d^2=e,b^a=be,c^a=cf,d^b=de100 conjugacy classes — view the full character table.
| maximal subgroup of | #99168, #99169, #99170, … |
| maximal normal subgroup of | #99168, #99169, #99170, … |
| maximal quotient of | C4⋊C4×#95, #153726, #153728, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 6792);